Highly Stereoselective Epoxidation with H2O2 Catalyzed by Electron-Rich Aminopyridine Manganese Catalysts
Highly Stereoselective Epoxidation with H2O2 Catalyzed by Electron-Rich Aminopyridine Manganese Catalysts
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DOI：
10.1021/ol403018x
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发表时间：
2013-12-20
期刊：
影响因子：
5.2
通讯作者：
Costas, Miquel
中科院分区：
文献类型：
--
作者：
Cusso, Olaf;Garcia-Bosch, Isaac;Costas, Miquel
锰配位配合物与富e氨基吡啶四齿配体实现了与H2O2快速、高效、高立体选择性的环氧化反应。结果表明，这些催化剂的电子性质随o原子转移事件的立体选择性而有系统地变化，并对过氧化氢的活化有精细的控制，减少了有效操作所需的羧酸助催化剂的量。
Fast, efficient, and highly stereoselective epoxidation with H2O2 is reached by manganese coordination complexes with e-rich aminopyridine tetradentate ligands. It is shown that the electronic properties of these catalysts vary systematically with the stereoselectivity of the O-atom transfer event and exert fine control over the activation of hydrogen peroxide, reducing the amount of carboxylic acid co-catalyst necessary for efficient operation.